Bottle portion



FIG. 1 is a perspective view of a bottle portion showing a new design;

FIG. 2 is a front elevational view of the bottle portion depicted in FIG. 1, the opposite rear elevational view being identical;

FIG. 3 is a side elevational view of the bottle portion depicted in FIG. 2, the opposite side elevational view being identical; and,

FIG. 4 is a bottom plan view of the bottle portion depicted in FIG. 2.

The broken line environmental showing is for illustrative purposes only and does not form part of the claimed design. 

The ornamental design for a bottle portion, as shown and described. 